PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/08/19-01:13:00
G08     318.6          13.1                9.9 +/-    1.97      25.8 +/-    1.97  0.110 / 0.140
G10     306.2          54.1                9.8 +/-    0.74      11.8 +/-    0.74  0.070 / 0.090
G14     212.0          19.6               11.0 +/-    2.18      24.4 +/-    2.18  0.030 / 0.040
G15     45.6           24.0                9.6 +/-    2.56      19.1 +/-    2.56  0.030 / 0.040
G18     10.4           64.8                9.7 +/-    0.72      10.6 +/-    0.72  0.080 / 0.130
G20     76.5           12.8                9.8 +/-    1.51      25.7 +/-    1.51  0.080 / 0.110
G21     113.9          69.1               12.8 +/-    0.89      13.6 +/-    0.89  0.030 / 0.030
G24     91.8           28.8               11.7 +/-    1.70      21.0 +/-    1.70  0.040 / 0.040
G27     290.9          37.2                9.8 +/-    4.09      14.9 +/-    4.09  0.240 / 0.370
G32     214.2          37.0               10.6 +/-    1.55      16.3 +/-    1.55  0.190 / 0.230